Machine for forming rolls from web stock



A ril 21, 1953 w. s. COOK ET' AL 2,635,401

MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed April 22, 1949 4Sheets-Sheet l April 21, 1953 W. S. COOK ET AL MACHINE FOR FORMING ROLLSFROM WEB STOCK Filed April 22, 1949 4 Sheets-Sheet 2 Apnl 21, 1953 w. s.COOK ET AL MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed A rii 22, 19494 Sheets-Sheet I5 W. S. COOK ET AL.

MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed April 22, 1949 April 21,1953 4 Sheets-Sheet 4 Patented Apr. 21, 1953 MACHINE FOR FORMING ROLLSFROM WEB STOCK Wayne S. Cook and John Stanley Robinson,

Grand Rapids, Mich., assignor to Sackner Products, Inc., a corporationof Michigan Application April 22, 1949, Serial No. 89,057

14 Claims.

This invention relates to improvements in machine for forming rolls fromweb stock.

The main objects of this invention are:

First, to provide a machine well adapted for forming rolls from multiplytissue webs which is highly eflicient and of large capacity and does notfracture or rupture the webs of the material.

Second, to provide a machine having these advantages which may be easilyoperated by a single operator.

Third, to provide a roll forming machine suitable for forming andwrapping rolls with a small amount of manual effort and handling of thematerial.

Objects relating to details and economies of the invention will appearfrom the description to follow. The invention is pointed out in theclaims.

A preferred embodiment of the invention is illustrated in theaccompanying drawings, in

which:

Fig. 1 is a fragmentary side elevation of a roll forming machineembodying our invention, certain parts being shown mainly inconventional form and the adjustability of certain parts being indicatedby full and dotted lines.

Fig. 2 is an enlarged fragmentary longitudinal section, certain partsbeing shown in retracted position by dotted lines, an ejected roll beingindicated by dotted lines, and the winding belt being shown in oneposition by full lines and partially shown in another position by dottedlines.

Fig. 3 is a fragmentary side perspective view showing further details ofthe machine.

Fig. 4 is a perspective view of a completed roll with the wrapperpartially opened to disclose the location of the adhesive.

Fig. 5 is a fragmentary perspective view illustrating the multiplycharacter of the material which the machine is designed to handle.

Fig. 6 i an enlarged fragmentary longitudinal view partially inlongitudinal section illustrating the use of the machine when a core isemployed for the roll.

Fig. 7 is a perspective view of a roll embodying a core prior to theapplication of an end member to the core.

In the accompanying drawing various struc tural parts are shownconventionally and means for securing the frame and supporting partstogether are not illustrated in detail as they form no part of ourpresent invention.

The machine illustrated in the accompanying drawing comprises a base Ihaving a frame, designated generally by the numeral 2, mounted thereon.The frame comprises uprights 3 and .4 on

which various operating parts are mounted. An auxiliary frame 5 isswingably mounted on the rear uprights 4 by means of the pivots 6 sothat the auxiliary frame may be swung vertically, as indicated by dottedlines in Fig. 1, for purposes which will be apparent as the descriptionproceeds.

An adjustable stop I limits the downward swing of the auxiliary frameand supports it in operative or winding position. The winding belt 8 isof a width corresponding to the width of the web of material or maysomewhat exceed that. This winding belt is trained over the drivingroller 9 mounted on the front uprights 3 of the main frame and driventhrough the driving chain ID to rotate counterclockwise as viewed inFig. 2. The shaft H of the pulley 9 is provided with a suitable sprocketcoacting with the chain, the sprocket not being illustrated. The shaft12 of the coacting winding roller [3 is carried by the auxiliary frame.The belt 8 is further supported by the supporting and guiding roller 14mounted on the rear uprights.

The belt tensioning roller [5 is carried by the arms 16 pivoted at I! onthe front uprights, these arms being provided with weights l8. A dashpot i9 is .provided for the tension roller support to control or checkthe return after a roll has been ejected. The belt is trained over thepulleys 9 and I3 to provide a loop in the belt designated generally bythe numeral 20. The rearwardly traveling reach 2| of the loop engagesthe top of the roller 9 while the forwardly traveling reach of the loop22 engages the underside of the coacting winding roller l3 as is clearlyshown in Fig. 2. The roller l3 also rotates in a counterclockwisedirection.

The chain I0 is driven from the motor 2| mounted on the base andconnected to the driving pulley 22 through a suitable transmissionindicated at 23. The belt 24 connects the driving pulley 22 to thepulley 25 on the shaft 26. The driving sprocket 21 for the chain I0 isconnected to the shaft 26 by means of a clutch 28 manually operated tothrow the same into operation against the stress of a spring. Clutchesof this type being old and common in the art, the details are notillustrated. The clutch lever 29 is operatively connected to the clutch,this lever being actuated to engaged position through the slide bar 30supported on suitable brackets 3| and provided with a thrust plate 32positioned to be engaged by the leg of the operator. The bar 30 isprovided with a keeper 33 with which the detent 34 engages when theclutch is in engaged position.

The detent is pivoted at 35 and released by a solenoid shownconventionally at 3B. This solenoid is controlled by a switch 31 havinga pivoted arm 38 carrying a roller 39 adapted to be engaged by the loopin the belt when a roll has reached a predetermined size. The maincontrol switch for the motor and the :electrical Supply connectionforthis control switch 3'! is desirably mounted on one of the frontuprights in a, position convenient for the operator as is shown at 40.

Our winding machine is especially designed for winding webs of multiplytissue, best shown in Fig. 4. The tissue is very light and fragile andis arranged in superimposed multiply relation. The webs are of a widthcorresponding to the desired length of the roll. Material commerciallyknown as Kimpak is an example of the material which our machine is welladapted to wind.

In practice a roll of tl'm material 4| is mounted on a spool or drum 42,is supported on the uprights 43, the shaft 44 of the spool or drum beingprovided with a friction wheel 45, with which the adjustable frictionbrake 45 .coacts. The web of material 4| to be wound is delivered to themachine through a chute 41 comprising spaced sections 48 and 49. Thechute is positioned to deliver the web upon the rearwardly travelingreach of the loop .20 :as is shown in Fig. 2. The chute has inwardlyturned flanges 50 which overhang the edges of the web and preventdisplacement of the webo'n the chute such as might occurthe operatorcame into .contact with the edges .of. the web. The sections of thechute 48 and 49 'arespaced to provide an opening 50' across" which the.web extends. This opening is provided to permit the operator to severthe web when the roll has reached the desired size. The frictionmemberilon the section 49 engages ,theweb and adds some tension thereto but itsmain purpose .to pieverit the web from withdrawing from the section 49of the chute when the web is severed. As the web is delivered to therearwardly traveling reach 2] of the winding belt loop it is carried'rearwardly. The rotation .of the roll as it is .built up within theloop of the belt pulls the web along the chute. The desired compactnessin the roll may be added by regulating .the braking friction on thesupply spool. The belt tensioning means also affects the compactness ofthe roll. As the roll increases in diameter the belt tensioning roller.is lifted.

rearwardly traveling reach of the winding belt loop and is carriedthereby around the roll. The winding belt 8 is thrown into operation towind the wrapper 54 about the roll by rearward manual operation .of theknee thrust plate 32. The spring of the clutch not shown releases theclutch upon release of the thrust plate. The chute 58 is hingedlymounted at 59 upon the swinging end of the auxiliary frame which isprovided with a stop Kill limiting the downward swing of the chute. Thechute may be swung out of the way for convenience in manipulation. Whenthe roll has reached the predetermined size it engages the switch triparm, as described,

4 thereby activating the solenoid S6 to release the detent 34 anddisengage the clutch.

The auxiliary frame is provided with a handie 6| conveniently positionedto permit the operator to swing the auxiliary frame upwardly and whenthat is done the belt tension pulley acts on the :belt to ejectthefinished mnsz upon the feed chute as indicated by dotted lines in Fig.2. The operator then removes the roll for packaging or otherwise as maybe desired. To maintain the loop we provide a retaining member 63 whichismounted on the auxiliary frame at 64 and has a rearwardly curved lowerportion 65 which is disposed concentrically relative to the pulley l3and retainingly engages the loop in the belt. After a roll has beenformed the web is rethreaded through the rear portion 48 of the chute sothat its rear end engages the rearwardly moving reach of the loop. Themachine is then started and operation repeated. The end plates 65 aremounted on the frame and positioned at the ends of the loop and the rollformed therein. There is, however, little tendency for the roll tobecome distorted or wind unevenly.

To add to the frictional engagement of the belt with the driving roller9 we provide a press or thrust roller .61 pivotally mounted at 8 andprovided with .a tension spring 59 so that the roller urges the beltupon the driven roller in ad-- vance of the loop in the belt.

In Rig. 6 we illustrate the method of winding upon a core 10 and whenwound upon the core or barrel, the core is placed in the loop before thefeeding of the web begins otherwise the ing is the same as described.The core in the embodiment illustrated is provided withend retaininglugs 1.! for end members or flanges, not illustrated, and it .isdesirable in this embodiment that the wrapper 12 shall be of such sizeas to project somewhat beyond the ends of the roll. The core flanges areslipped over the projecting ends of the core and the lugs ll bent intoretaining engagement therewith. This provides a structure in which theroll may be mounted on a spindle so that the material can be unwound asfrom a spool.

While our machine is especially designed for rolling rather fragile websof materials, such as multiply creped cellulose tissue, it may be usedfor the winding of other web materials.

We have illustrated and described our invention in a highly practicalembodiment thereof. We have not attempted to illustrate or describevarious modifications and adaptations which we contemplate as it isbelieved that this disclosure will enable those skilled in the art toembody or adapt our invention as may be desired.

Having thus described our invention what we claim as new and desire tosecure by Letters Patent is:

1. A winding machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, a winding beltdriving roller mounted on said main frame, a coacting winding beltroller mounted on said auxiliary frame, a winding belt trained upon saidrollers to provide a loop therebetween, side plates disposed at theedges of the loop extended from between said rollers, supporting andtensioning rollers for said belt, the tensioning roller being mounted ona weighted movable support, a dash pot controlling the return movementof said support, driving connections for said driving roller including aclutch, an automatically released detent for holding said clutch inengaged position, a control means for said detent positioned to beengaged by the loop of the winding belt'when the roll therein reaches apredetermined size, a web feed chute having overhanging side flangesdisposed to guide a web of material to be wound into the loop of thewinding belt between the said rollers, said feed chute having atransverse opening therein facilitating the severing of the web, a webtensioning means mounted on said feed chute in advance of said openingtherein, a wrapper chute mounted on said auxiliary frame above said webfeed chute to guide a wrapper to the rearwardly traveling reach of theloop in the winding belt, and a web guide and loop retaining membermounted on said auxiliary frame and having a rearwardly curved lower endprojecting between the rollers when they are in winding position.

2. A winding machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, a winding beltdriving roller mounted on said main frame, a coacting winding beltroller mounted on said auxiliary frame, a winding belt trained upon saidrollers to provide a loop therebetween, side plates disposed at theedges of the loop extended from between said rollers, supporting andtensioning rollers for said belt, a web feed chute having overhangingside flanges disposed to guide a web of material to be wound into theloop of the winding belt between the said winding rollers, said feedchute having a transverse opening therein facilitating the severing ofthe web, a web tensioning means mounted on said feed chute in advance ofsaid opening therein, a wrapper chute mounted on said auxiliary frameabove said web feed chute to guide a wrapper to the rearwardly travelingreach of the loop in the winding belt, and a web guide and loopretaining member mounted on said auxiliary frame and having a rearwardlycurved lower end projecting between the rollers when they are in windingposition for forming and retaining a loop of the winding belt betweensaid rollers and for guiding said web and wrapper onto the rearwardlytraveling reach of the winding belt and into said loop of the windingbelt formed and retained by said guide and loop retaining membertensioning of said belt by said supporting and tensioning rollersejecting the wound roll from the loop of the winding belt upon movementof the winding roller on the auxiliary framefrom the winding roller onthe main frame, said web guide and loop retaining member on theauxiliary frame forming, positioning and retaining a loop in the windingbelt after ejection of a wound roll from the loop on the winding beltand upon movement of the winding roller and loop retaining member on theauxiliary frame toward the winding roller on the main frame.

3. A winding machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, an adjustable stopmeans for said auxiliary frame, a winding belt roller mounted on saidmain frame, a coacting winding belt roller mounted on said auxiliaryframe, a winding belt trained upon said rollers to provide a looptherebetween, side plates disposed at the edges of the loop extendedfrom between said rollers, supporting and tensioning rollers for saidbelt, driving connections for said driven roller including a clutch, acontrol means for said clutch including a member positioned to beengaged by the loop of the winding belt when the roll therein reaches apredetermined size, a web feed chute' disposed to guide a web ofmaterial to be wound into the loop of the winding belt between the saidrollers, and a wrapper chute mounted on said auxiliary frame above saidweb feed chute to guide a wrapper to the rearwardly traveling reach ofthe loop in the winding belt, said wrapper chute being swingablysupported on said auxiliary frame, and a web guide and loop retainingmember mounted on the auxiliary frame and projecting between the rollerswhen they are in winding position.

4. A winding machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, an adjustable stopmeans for said auxiliary frame, a winding belt roller mounted on saidmain frame, a coacting winding belt roller mounted on said auxiliaryframe, a winding belt trained upon said rollers to provide a looptherebetween, side plates disposed at the edges of the loop extendedfrom between said rollers, supporting and tensioning rollers for saidbelt, a web feed chute disposed to guide a web of material to be woundinto the loop of the winding belt between the said rollers, and awrapper chute mounted on said auxiliary frame above said web feed chuteto guide a wrapper to the rearwardly traveling reach of the loop in thewinding belt, said wrapper chute being swingably supported on saidauxiliary frame, and a web guide and loop retaining member mounted onthe auxiliary frame and projecting between the rollers when they are inwinding position for forming and retaining a loop of the winding beltbetween said rollers and for guiding said web and wrapper onto therearwardly traveling reach of the winding belt and into said loop of thewinding belt formed and retained by said guide and loop retaining member tensioning of said belt by said supporting and tensioning rollersejecting the wound roll from the loop of the winding belt upon movementof the winding roller on the auxiliary frame from the winding roller onthe main frame, said web guide and loop retaining member on theauxiliary frame forming, positioning and retaining a loop in the windingbelt after ejection of a wound roll from the loop on the winding beltand upon movement of the winding roller and loop retaining member on theauxiliary frame toward the winding roller on'the main frame.

5. A Winding machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, a winding beltroller mounted on said main frame, a coacting winding belt rollermounted on said auxiliary frame, a winding belt trained upon saidrollers to provide a loop therebetween, side plates disposed at theedges of the loop extended from between said rollers, supporting andtensioning rollers for said belt, driving connections for said drivenroller including a clutch, a control means for said clutch including amember positioned to be engaged by the loop of the winding belt when theroll therein reaches a predetermined size, a web feed chute disposed toguid a web of material to be wound into the loop of the winding beltbetween the said rollers, and a wrapper chute mounted on said auxiliaryframe above said web feed chute to guide a wrapper to the rearwardlytraveling reach of the loop in the winding belt, and a web guide andloop retaining member mounted on the auxiliary frame and projectingbetween the rollers when they are in Winding position.

6. A winding, machine of the class described comprising a main frame, anauxiliary frame movably mounted on said main frame, a winding beltroller mounted on said main frame, a coacting winding belt rollermounted on said auxiliary frame, a winding belt trained upon saidrollers to provide a loop therebetween, supporting and tensioningrollers for said belt, and a web guide and loop retaining member mountedon the auxiliary frame and projecting between the rollers when they arein winding position for forming and retaining a loop of the winding beltbetween said rollers and for guiding said web and wrapper onto therearwardly traveling reach of the winding belt and into said loop of thewinding belt formed and retained by said guide and loop retaining membertensioning of said belt by said supporting and tensioning rollersejecting the wound roll from the loop of the winding belt upon movementof the winding roller on the auxiliary frame from the winding roller onthe main frame, said web guide and loop retainin member on the auxiliaryframe formin positioning and retaining a loop in the winding belt afterejection of a wound roll from the loop on the winding belt and uponmovement of the winding roller and loop retaining member on theauxiliary frame toward the winding roller on the main frame.

7. A winding machine of the class described comprising a driven windingbelt, coacting supporting rollers for said winding belt, said windingbelt being trained on said rollers to provide a loop therebetween, oneof said rollers being supported for adjustment toward and from theother, tensioning means for said belt acting to permit the extension ofthe loop in the belt as the diameter of a roll being formed within theloop is increased, driving connections for said belt including amanually engageable clutch, a detent for holding said clutch in engagedposition, a releasing means for said detent positioned to be engaged bythe loop of the winding belt when the roll therein reaches apredetermined size, a feed chute for the material to be wound disposedto guide the material upon the rearwardly traveling reach of the loop ofthe winding belt, a wrapper guiding chute mounted above the materialfeed chute to guide a wrapper onto the rearwardly traveling reach of theloop in the winding belt, the said adjustable roller being adjustable topermit a completed roll being ejected upon the feed chute by the tensionof the belt when the adjustable roller is retracted.

8. A winding machine of the class described comprising a driven windingbelt, coacting supporting rollers for said winding belt, said windingbelt being trained on said rollers to provide a loop therebetween, oneof said rollers being supported for adjustment toward and from theother, tensioning means for said belt acting to permit the extension ofthe loop in the belt as the diameter of a roll being formed within theloop is increased, a feed chute for the material to be wound disposed toguide the material upon the rearwardly traveling reach of the loop ofthe winding belt, a wrapper guiding chute mounted above the materialfeed chute to guide a wrapper onto the rearwardly traveling reach of theloop in the winding belt, the said adjustable roller being adjustable topermit a completed roll being ejected upon the feed chute by the tensionof the belt when the adjustable roller is retracted, and common meansfor supporting said adjustable roller and wrapper guiding chute topermit adjustment of the wrapper guiding chute away from said firstmentioned chute upon said adjustment of said adjustable roller to permitpassage of a completed roll between said first mentioned chute and saidwrapper guiding chute upon ejection of the completed roll.

9. A winding machine of the class described comprising a driven windingbelt, coacting supporting rollers for said winding belt, said windingbelt being trained on said rollers to provide a loop therebetween, oneof said rollers bein supported for adjustment toward and from the other,tensioning means for said belt acting to permit the extension of theloop in the belt as the diameter of a roll being formed within the loopis increased, and a rearwardly projecting loop retaining member mountedfor adjustment with the adjustable winding roller, the said adjustableroller being adjustable to permit a completed roll being ejected uponthe feed chute by the tension of the belt when the adjustable roller isretracted, said loop retaining member acting to maintain an initialmaterial receiving loop in the belt when the adjustable roller is inadvanced position adjacent said other roller, the rearward end of saidloop retaining member terminating between said adjustable roller andsaid other roller when the adjustable roller is in said advancedposition adjacent said other roller.

10. A winding machine of the class described comprising a driven windingbelt, coacting supporting and driving rollers for said winding belt,said winding belt being trained on said rollers to provide a looptherebetween, one of said rollers being supported for adjustment towardand from the other to permit the ejection of a roll between the rollerswhen the adjustable roller is retracted, a tensioning means for saidbelt acting to permit the extension of the loop in the belt as thediameter of a roll within the loop is increased, a feed chute for thematerial to be wound disposed to guide the material upon the lower reachof the loop of the winding belt, and a rearwardly projecting loopretaining member mounted for adjustment with the adjustable windingroller and acting to form an initial receiving loop in the belt when theadjustable roller is in advanced position adjacent said other roller,the rearward end of said loop retaining member terminating between saidadjustable roller and said other roller, said feed chute being disposedto guide the material between said loop retaining member and said otherroller.

11. A winding machine of the class described comprising a driven windingbelt, coacting supporting and driving rollers for said winding belt,said winding belt being trained on said rollers to provide a looptherebetween, one of said rollers being supported for adjustment towardand from the other to permit the ejection of a roll between the rollerswhen the adjustable roller is retracted, a tensioning means for saidbelt acting to permit the extension of the loop in the belt as thediameter of a roll within the loop is increased, side plates disposed atthe edges of the loop in the belt, a feed chute for the material to bewound disposed to guide the material upon the lower reach of the loop ofthe winding belt, a wrapper guiding chute disposed above the materialfeed chute to guide a wrapping sheet onto the rearwardly traveling reachor the loop in the winding belt, and a rearwardly projecting loopretaining member mounted for adjustment with the adjustable windingroller and acting to form an initial receiving loop in the belt when theadjustable roller is in advanced position adjacent said other roller,the rearward end of said loop retaining member terminating between saidadjustable roller and said other roller when the adjustable roller is insaid advanced position adjacent said other roller.

12. A winding machine of the class described comprising a driven windingbelt, coacting supporting and driving rollers for said winding belt,said winding belt being trained on said rollers to provide a looptherebetween, one of said rollers being supported for adjustment towardand from the other to permit the ejection of a roll between the rollerswhen the adjustable roller is retracted, a tensioning means for saidbelt acting to permit the extension of the loop in the belt as thediameter of a roll within the loop is increased, and a rearwardlyprojecting loop retaining member mounted for adjustment with theadjustable winding roller and acting to form an initial receiving loopin the belt when the adjustable roller is in advanced position adjacentsaid other roller, the rear end of said loop retaining member beingdisposed forwardly a plane disposed tangent to the rear sides of saidadjustable roller and said other roller.

13. A winding machine of the class described comprising a driven windingbelt, coacting supporting and driving rollers for said winding belt,said winding belt being trained on said rollers to provide a looptherebetween, one of said rollers being supported for adjustment towardand from the other to permit the ejection of a roll between the rollerswhen the adjustable roller is retracted, a tensioning means for saidbelt acting to permit the extension of the loop in the belt as thediameter of a roll within the loop is increased, and a loop retainingmember projecting from a position forward of to a position between saidrollers and acting to form an initial receiving loop in the belt andretain said loop between said rollers when the adjustable roller is inadvanced position adjacent said other uoller, said loop retaining memberacting to form said loop against the tension of the belt produced bysaid tensioning means.

14. A winding machine of the class described comprising a driven windingbelt, coasting supporting rollers for said winding belt, said windingbelt being trained on said rollers to provide a loop therebetween, oneof said rollers being supported for adjustment toward and from theother, a tensioning means for said belt acting to permit the extensionof the loop in the belt as the diameter of a roll within the loop isincreased, a feed chute for the material to be wound disposed to guidethe material upon the rearwardly traveling reach of the loop of thewinding belt, and a wrapper guide positioned to guide a wrapper onto therearwardly traveling reach of the loop in the winding belt, and commonmeans for supporting said adjustable roller and said wrapper guide formoving said adjustable roller and wrapper guide away from said feedchute and other roller to permit ejection of the completed roll fromsaid loop and between said rollers and between said wrapper guide andfeed chute.

WAYNE S. COOK. JOHN STANLEY ROBINSON.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 553,045 Sullivan Jan. 14, 1896 999,352 Waring Aug. 1, 19111,006,009 Sargent Oct. 17, 1911 1,400,827 Leumann Dec, 20, 19211,445,022 Kimball Feb. 13, 1923 1,601,784 Wanders Oct. 5, 1926 1,642,681Kaplan Sept. 20, 1927 1,714,816 Proctor May 28, 1929 2,144,264 McRae etal Jan. 17, 1939 2,353,821 Fourness et a1 July 18, 1944

